General Streaming of Galaxies Seen Out to 100 Mpc
DOI: 10.1063/1.2815198
It is a canon of cosmology that on a large scale the universe is homogeneous and isotropic. If you peer out far enough, it should look about the same in all directions. During the last several months, astrophysicists have been wrestling with the serious implications of observations indicating that locally the expansion of the universe may not be uniform in every direction, even when we look out as far as a hundred million parsecs. Last January at a NATO workshop in Hawaii, an international group of seven astrophysicists claimed to have found observational evidence for a bulk streaming motion of the galaxies throughout our extended neighborhood—out to much larger distances than expected.
